In coastal areas and beaches Demak are populated by a variety of ecosystems such as coral reefs, mangroves, fish, fish-eating birds, shrimp, and so on. Because of its diversity, these ecosystems are considered susceptible to interference from outside. Therefore, it is necessary to protect and preserve the coastal areas and beaches.This study uses a method of integrating remote sensing and GIS technology for assembling the Environmental Sensitivity Index (ESI) Maps. Study began with the creation of Land Cover Map Demak Coastal Area, then the identification of coastal ecosystems through IKONOS satellite imagery, classification of shoreline and biological resources and subsequently entered into the stage of manufacture cartography Environmental Sensitivity Index (ESI) Maps of the Coastal Zone Demak.The results showed species and habitats of flora and fauna that successfully mapped and identified, there are as many as 19 species are scattered along the coast of Demak. Sensitive shoreline classification that often appear to be at the level of 10C (Swamps) and there are 7 other variations in the level of vulnerability. Classification variations are caused by differences in the structure of land that formed the shoreline and coastal area of Demak. The resulting product is a map: Environmental Sensitivity Index (ESI) Maps of the Coastal Zone Demak, the scale of the map was 1:25,000 and amounted to 6 (six) map sheet. In USAbility tests conducted on the product map, showing 70% respondents can understand and accept the information displayed in the map. So it can be assumed that the Environmental Sensitivity Index (ESI) Maps of the Coastal Zone Demak can be understood by the reader and user of the map, and can be used as a reference for the development of coastal areas of Demak.